[BUG] - Flickering tunnel status with kernel backend

[LordMZTE]

Describe the bug
When using the kernel backend, the status of a tunnel in the app's main page will "flicker" between handshake: never and 0 tx/rx and showing the actual correct information about once a second.

Smartphone (please complete the following information):

• Device: OnePlus 7T (hotdogb)
• Android Version: Android 15 / LineageOS 22.1
• App Version 3.6.6 from F-Droid
• Backend: Kernel

To Reproduce

1. Select the kernel backend
2. Activate a tunnel
3. Observe the behavior described above

Expected behavior
The connection information is shown steadily.

Additional context
The log contains this, repeatedly:

         1738955937.492  4690 10757 V WireGuard/RootShell: executing: wg show 'MZTE' dump
         1738955937.510  4690 10757 V WireGuard/RootShell: stdout: <crypto-key>	<crypto-key>	40931	0x20000
         1738955937.510  4690 10757 V WireGuard/RootShell: stdout: <crypto-key>	(none)	<ipv4-address>:37	<ipv4-address>/0,::/0	0	0	0	off
         1738955937.510  4690 10757 V WireGuard/RootShell: exit: 0